CN105305459A - Internet communication based multi-SVG system and communication method thereof - Google Patents
Internet communication based multi-SVG system and communication method thereof Download PDFInfo
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- CN105305459A CN105305459A CN201510686279.8A CN201510686279A CN105305459A CN 105305459 A CN105305459 A CN 105305459A CN 201510686279 A CN201510686279 A CN 201510686279A CN 105305459 A CN105305459 A CN 105305459A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
The invention provides an Internet communication based multi-SVG system. The system comprises at least three reactive compensation units and a background computation center; the reactive compensation units are placed in the same or different line(s) of the electrical network, and each reactive compensation unit comprises a communication device and an SVG; the communication devices are placed between the background computation center and the SVGs respectively and used for receiving and transmitting data; each SVG is arranged in the line of the electrical network, collects real-time information of the line, uploads the information to the Internet, receives an instruction of the background computation center, and outputs compensation current to implement compensation; and the background computation center is used for computing the total compensation amount and the compensation component of each SVG, each compensation component is converted into an instruction of certain issuing sequence, and after all the instructions are converted, the instructions are issued to the SVGs in the corresponding compensation units respectively. The system can realize dynamic coordinated output of multiple SVGs, the compensation effect is improved, identical low-capacitor SVGs are used, and the operation and maintenance cost is reduced.
Description
Technical field
The present invention relates to power electronics control technology field, particularly relate to a kind of many SVG based on internet communication system and communication means thereof.
Background technology
The existence of a large amount of reactive power in electric power system, Voltage Drop can be caused, affect the quality of power supply, electric network security is affected while producing even unnecessary electric energy loss, therefore reactive power compensation is that maintenance modern power systems is stable, safe and economical operation is necessary, and reactive power compensation technology then represents the height of State Grid's level.
SVG(StaticVarGenerator, static reacance generator) appearance become modern SVC(StaticVarCompensator, static passive compensation device) once new change, have that fast response time, control precision are high with it, dynamic Continuous Compensation, effectively suppress the superior functions such as voltage fluctuation and flicker, become one of important member in flexible AC transmitting system device.
In prior art, the principle of reactive power compensation is partition compensation, local compensation, reduces the principle that reactive power is transmitted on the line as far as possible.When electrical network normally runs, load absorb idle can separate compensation, due to safety and stability problem can not be caused, more can consider and use cheap capacitor and SVC to compensate, and when the grid collapses, need to compensate a large amount of reactive power, and compensation speed wants fast, SVG now should be adopted to compensate, because SVG is by the withstand voltage level of itself power electronic device, current capacity, the restriction of the technical merits such as switching frequency, cause SVG compensation capacity limited, the electric current that therefore need compensate once electric power system exceedes the specified compensation capacity of separate unit SVG, multiple stage SVG can be accessed bus respectively to compensate, but shortcoming is: one, due to multiple stage SVG independent operating, and decentralized control, make compensation effect poor, there is larger limitation, two, because each SVG compensation capacity is different, cost is different, and the mode of maintenance is also different, and therefore different SVG will bring high operating cost and maintenance cost.
Along with the development of Internet technology, advanced Internet communication technology and the use of information technology will be expected to improve the fail safe of electrical network, reliability and operational efficiency, therefore a kind of many SVG based on internet communication system is needed badly, multiple stage SVG dynamic coordinate can be realized export, improve compensation effect, and adopt identical low capacity SVG, thus save operating cost and maintenance cost.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of many SVG based on internet communication system and communication means thereof are provided, multiple stage SVG dynamic coordinate can be realized and export, improve compensation effect, and adopt identical low capacity SVG, thus save operating cost and maintenance cost.
In order to solve the problems of the technologies described above, embodiments provide a kind of many SVG based on internet communication system, comprising at least 3 reactive compensation unit, and all carry out a hind computation center of data interaction by the Internet with each reactive compensation unit; Wherein,
Each reactive compensation unit described is all positioned on the same circuit of electrical network or lays respectively on the corresponding circuit of described electrical network, and it comprises a communication equipment and a static reacance generator SVG; Wherein, one end of described communication equipment is connected with described hind computation center by the Internet, and the other end is connected with described SVG, for receiving and send data mutual between described hind computation center and described SVG; Described SVG is arranged on described power network line, for gather the power network line that it is positioned at real time information after, be uploaded to described hind computation center by the Internet to process, and receive the instruction that described hind computation center issues, and according to the described instruction received, offset current is exported to its power network line be positioned at and compensates;
Described hind computation center, for the real time information sent according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof, and all convert described each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described transmitting sequence.
Wherein, described SVG comprises electric network data acquisition processing module, the Internet communication module, mutual inductance circuit, control circuit, drive circuit, main circuit and protective circuit; Wherein,
Described main circuit is connected with described drive circuit, protective circuit, electric network data acquisition processing module and mutual inductance circuit respectively, is also connected with described power network line by a cable; Wherein, described mutual inductance circuit comprises voltage transformer summation current transformer;
Described drive circuit is also connected by the first end of described control circuit with described the Internet communication module, and is connected with described power network line by a cable;
Described protective circuit is also connected with described power network line by a cable;
Described electric network data acquisition processing module is also connected with the second end of described the Internet communication module;
3rd end of described the Internet communication module is connected with the communication equipment that it matches.
Wherein, described communication equipment is optical fiber switch or wireless router.
The embodiment of the present invention additionally provides a kind of many SVG based on internet communication system communicating method, and it realizes in aforesaid many SVG system, and described method comprises:
After in a, described many SVG system, in each reactive compensation unit, SVG gathers the real time information of the power network line that it is positioned at respectively, and processed by the hind computation center that the Internet is uploaded to described many SVG system;
The real time information that b, described hind computation center send according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof, and all convert described each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described transmitting sequence;
In c, each reactive compensation unit described, SVG receives the instruction that described hind computation center issues accordingly, and according to the described instruction received, exports offset current compensate its power network line be positioned at.
Wherein, the concrete steps of described step b comprise further:
The real time information that described hind computation center sends according to SVG in each reactive compensation unit received, determines the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof;
When to get in each reactive compensation unit SVG and be all normal, all convert described each compensate component calculated the instruction with random transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively at random the SVG in corresponding compensating unit.
Wherein, the concrete steps of described step b further comprise:
The real time information that described hind computation center sends according to SVG in each reactive compensation unit received, determines the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof;
When getting that in a compensating unit, SVG breaks down, determine that the quantity of normal SVG is the total transfer capability that n and described n normal SVG is corresponding respectively, and calculate described n normal SVG further respectively and the described transmission distance broken down between SVG; N is natural number;
Using the described n a calculated transmission distance according to after sorting from small to large as described n the normal corresponding sequence of extraction of SVG, and from 1 to n, ascending order numbering is carried out to described sequence of extraction;
Sequentially obtain the total transfer capability of normal SVG corresponding to described sequence of extraction, until when get be numbered m time, during compensate component corresponding to the SVG that breaks down described in being more than or equal to after the difference generated between the compensate component that before in described sequence of extraction, the total transfer capability of the normal SVG of m is corresponding with it adds up, stop extracting, and further according to described sequence of extraction using the total transfer capability of normal for front m SVG as compensate component corresponding to described front m normal SVG, and rear n-m the compensate component that normally SVG is corresponding respectively all converts instruction to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described sequence of extraction, wherein, m≤n, and be natural number.
Wherein, described method comprises further:
Sequentially obtain the total transfer capability of normal SVG corresponding to described sequence of extraction, after treating that n numbering is extracted, the compensate component that the SVG that breaks down described in being still less than after the difference generated between the compensate component that the total transfer capability of the normal SVG of described n is corresponding with it adds up is corresponding, then all convert the total transfer capability of described n normal SVG to instruction as described n the compensate component that normally SVG is corresponding according to described sequence of extraction, and after treating all instruction transformation further, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described sequence of extraction, and output alarm information.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, due to based on internet communication, power network compensation is made to have more flexibility and fail safe increases greatly; When SVG is all normal, simply compensate when only normally need run according to electrical network; And when a certain SVG breaks down, compensated by the normal SVG filtering out the nearest transmission distance of this fault SVG, thus can compensated line in time, to guarantee Supply Security, realizing multiple stage SVG dynamic coordinate exports, and improves compensation effect;
2, in embodiments of the present invention, because the SVG in each reactive compensation unit all can be identical low capacity SVG, instead of single jumbo SVG and use, thus save operating cost and maintenance cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, the accompanying drawing obtaining other according to these accompanying drawings still belongs to category of the present invention.
The network topological diagram of a kind of system of many SVG based on internet communication that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the system construction drawing of SVG in Fig. 1;
The flow chart of a kind of system communicating method of many SVG based on internet communication that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, in the embodiment of the present invention, a kind of system of many SVG based on internet communication provided, comprises at least 3 reactive compensation unit A, and all carries out a hind computation center B of data interaction by the Internet with each reactive compensation unit A; Wherein,
Each reactive compensation unit A is all positioned on the same circuit of electrical network or lays respectively on the corresponding circuit of described electrical network, and it comprises a communication equipment and a static reacance generator SVG; Wherein, one end of communication equipment is connected with hind computation center B by the Internet, and the other end is connected with SVG, for receiving and send data mutual between B and the SVG of hind computation center; SVG is arranged on power network line, for gather the power network line that it is positioned at real time information after, the B process of hind computation center is uploaded to by the Internet, and receive the instruction that hind computation center B issues, and according to the instruction received, offset current is exported to its power network line be positioned at and compensates;
Hind computation center B, for the real time information sent according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of power network line reactive power and each reactive compensation unit corresponding thereof, and all convert each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to transmitting sequence.
It should be noted that SVG can adopt identical low capacity SVG, thus save operating cost and maintenance cost.When hind computation center B normally can run according to electrical network or electrical grid failure time (a certain SVG breaks down), dynamic conditioning compensate component, and the order of the compensate component of dynamic conditioning according to setting is issued, thus realize the output of multiple stage SVG dynamic coordinate, improve compensation effect.
As an example, when electrical network normally runs, as long as hind computation center B is according to compensation total amount, calculate the compensate component of SVG in each reactive compensation unit, all convert above-mentioned compensate component to instruction, the random corresponding SVG that is handed down to carries out electric current output compensation, thus guarantees Supply Security.
As another example, when electrical grid failure, namely a certain SVG breaks down, now hind computation center B can according to compensation total amount, calculate the normal corresponding compensate component of SVG in each reactive compensation unit, simultaneously in order to can compensated line in time, to guarantee Supply Security, communication-cooperation is needed to make other SVG send reactive power compensation, as determined, the nearest normal SVG of distance fault SVG transmission distance opens maximum ability to transmit electricity to meet the compensation demand of fault SVG, once can not meet, then continue to open the compensation demand that the maximum ability to transmit electricity of the in-plant normal SVG of distance fault SVG second meets fault SVG, till the compensation demand meeting this fault SVG.Certainly, once all normal SVG open maximum ability to transmit electricity in many SVG system, when but can not meet the compensation demand of fault SVG, then need manually to intervene.
Be understandable that, communication equipment is optical fiber switch or the wireless router that can carry out transfer of data.
As shown in Figure 2, SVG comprises electric network data acquisition processing module 11, the Internet communication module 12, mutual inductance circuit 13, control circuit 14, drive circuit 15, main circuit 16 and protective circuit 17; Wherein,
Main circuit 16 is connected with drive circuit 15, protective circuit 17, electric network data acquisition processing module 11 and mutual inductance circuit 13 respectively, is also connected with power network line by a cable; Wherein, mutual inductance circuit 13 comprises voltage transformer summation current transformer;
Drive circuit 15 is also connected with the first end a1 of the Internet communication module 12 by control circuit 14, and is connected with power network line by a cable;
Protective circuit 17 is also connected with power network line by a cable;
Electric network data acquisition processing module 11 is also connected with the second end a2 of the Internet communication module 12;
3rd end a3 of the Internet communication module 12 is connected with the communication equipment that it matches.
As shown in Figure 3, in the embodiment of the present invention, a kind of system communicating method of many SVG based on internet communication provided, it realizes in aforesaid many SVG system, and described method comprises:
After in step S1, described many SVG system, in each reactive compensation unit, SVG gathers the real time information of the power network line that it is positioned at respectively, and processed by the hind computation center that the Internet is uploaded to described many SVG system;
The real time information that step S2, described hind computation center send according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof, and all convert described each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described transmitting sequence;
Detailed process is, a point electrical network normally runs and is described with electrical grid failure, specific as follows:
(1) electrical network normally runs: the real time information that hind computation center sends according to SVG in each reactive compensation unit received, and determines the compensate component of SVG in the compensation total amount of power network line reactive power and each reactive compensation unit corresponding thereof;
When to get in each reactive compensation unit SVG and be all normal, all convert each compensate component calculated the instruction with random transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively at random the SVG in corresponding compensating unit;
(2) electrical grid failure: the real time information that hind computation center sends according to SVG in each reactive compensation unit received, determines the compensate component of SVG in the compensation total amount of power network line reactive power and each reactive compensation unit corresponding thereof;
When getting that in a compensating unit, SVG breaks down, determine that the quantity of normal SVG is the total transfer capability that n and n normal SVG is corresponding respectively, and calculate n normal SVG further respectively and the transmission distance broken down between SVG; N is natural number;
Using the n a calculated transmission distance according to after sorting from small to large as n the normal corresponding sequence of extraction of SVG, and from 1 to n, ascending order numbering is carried out to sequence of extraction;
Sequentially obtain the total transfer capability of normal SVG corresponding to this sequence of extraction, until when get be numbered m time, when being more than or equal to compensate component corresponding to the SVG that breaks down after the difference generated between the compensate component that before in sequence of extraction, the total transfer capability of the normal SVG of m is corresponding with it adds up, stop extracting, and further according to sequence of extraction using the total transfer capability of normal for front m SVG as compensate component corresponding to front m normal SVG, and rear n-m the compensate component that normally SVG is corresponding respectively all converts instruction to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to sequence of extraction, wherein, m≤n, and be natural number.
Certainly extracted all normal SVG in appearance according to sequence of extraction, when but can not meet the compensation demand of fault SVG, just need output alarm information, notify that attendant carries out manual intervention, therefore described method comprises further:
Sequentially obtain the total transfer capability of normal SVG corresponding to this sequence of extraction, after treating that n numbering is extracted, compensate component corresponding to the SVG that breaks down still is less than after the difference generated between the compensate component that the total transfer capability of the normal SVG of described n is corresponding with it adds up, then all convert the total transfer capability of n normal SVG to instruction as n the compensate component that normally SVG is corresponding according to sequence of extraction, and after treating all instruction transformation further, each instruction is handed down to respectively the SVG in corresponding compensating unit according to sequence of extraction, and output alarm information.
The application scenarios of electrical grid failure in step S2 is described further:
The first step, determine that in electrical network, position a breaks down, and prompting needs reactive power compensation;
The position of second step, acquisition node a, according to other known normal SVG position, calculates the transmission distance of a to each normal SVG one by one, obtains vectorial D [N], and, list total transfer capability vector E [N] of corresponding each normal SVG; In order to preferentially use the normal SVG from a point is nearest to be a supplementary power, need D [N] sequence, and the order of synchronous vacations E [N]; Wherein, N is the quantity of the normal SVG of electrical network;
3rd step, according to bubble sort method.Minimum value is sunk by setting.From D [0], every two D closed on [i] and D [i+1], make comparisons, and little person sinks, and participate in comparing next time.Note, in this process, want the corresponding element position of synchronous vacations E vector.Until first time calculates D [N] position, just obtain the minimum value in vectorial D, be stored in D [N] position.After obtaining minimum value D [N], check that can the fan-out capability numerical value of E [N] meet the demand of a point, if can satisfy the demands, then by result stored in instruction set R, scheduling algorithm terminates rear execution R.If can not meet, then " node that D [N] is corresponding completely exports (namely exporting maximum ability to transmit electricity) " instruction is temporary in R, calculates fan-out capability difference detQ=Q-E [N].And continue bubble sort, find time minimum value D [N-1], again judge after finding to meet detQ.By that analogy, until be met the instruction set R of Q, algorithm terminates, and starts hardware and performs instruction in R.
If the 4th step bubble sort terminates, still can not meet Q, then this electrical network of alarm can not meet a point demand, performs instruction in R, and asks human intervention.
In step S3, each reactive compensation unit described, SVG receives the instruction that described hind computation center issues accordingly, and according to the described instruction received, exports offset current compensate its power network line be positioned at.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, due to based on internet communication, power network compensation is made to have more flexibility and fail safe increases greatly; When SVG is all normal, simply compensate when only normally need run according to electrical network; And when a certain SVG breaks down, compensated by the normal SVG filtering out the nearest transmission distance of this fault SVG, thus can compensated line in time, to guarantee Supply Security, realizing multiple stage SVG dynamic coordinate exports, and improves compensation effect;
2, in embodiments of the present invention, because the SVG in each reactive compensation unit all can be identical low capacity SVG, instead of single jumbo SVG and use, thus save operating cost and maintenance cost.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (7)
1. based on many SVG system of internet communication, it is characterized in that, comprise at least 3 reactive compensation unit, and all carry out a hind computation center of data interaction by the Internet with each reactive compensation unit; Wherein,
Each reactive compensation unit described is all positioned on the same circuit of electrical network or lays respectively on the corresponding circuit of described electrical network, and it comprises a communication equipment and a static reacance generator SVG; Wherein, one end of described communication equipment is connected with described hind computation center by the Internet, and the other end is connected with described SVG, for receiving and send data mutual between described hind computation center and described SVG; Described SVG is arranged on described power network line, for gather the power network line that it is positioned at real time information after, be uploaded to described hind computation center by the Internet to process, and receive the instruction that described hind computation center issues, and according to the described instruction received, offset current is exported to its power network line be positioned at and compensates;
Described hind computation center, for the real time information sent according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof, and all convert described each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described transmitting sequence.
2. many SVG system as claimed in claim 1, is characterized in that, described SVG comprises electric network data acquisition processing module, the Internet communication module, mutual inductance circuit, control circuit, drive circuit, main circuit and protective circuit; Wherein,
Described main circuit is connected with described drive circuit, protective circuit, electric network data acquisition processing module and mutual inductance circuit respectively, is also connected with described power network line by a cable; Wherein, described mutual inductance circuit comprises voltage transformer summation current transformer;
Described drive circuit is also connected by the first end of described control circuit with described the Internet communication module, and is connected with described power network line by a cable;
Described protective circuit is also connected with described power network line by a cable;
Described electric network data acquisition processing module is also connected with the second end of described the Internet communication module;
3rd end of described the Internet communication module is connected with the communication equipment that it matches.
3. many SVG system as claimed in claim 2, is characterized in that, described communication equipment is optical fiber switch or wireless router.
4. based on many SVG system communicating method of internet communication, it is characterized in that, it realizes comprising in many SVG system as claimed any one in claims 1 to 3, and described method comprises:
After in a, described many SVG system, in each reactive compensation unit, SVG gathers the real time information of the power network line that it is positioned at respectively, and processed by the hind computation center that the Internet is uploaded to described many SVG system;
The real time information that b, described hind computation center send according to SVG in each reactive compensation unit received, calculate the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof, and all convert described each compensate component calculated the instruction with certain transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described transmitting sequence;
In c, each reactive compensation unit described, SVG receives the instruction that described hind computation center issues accordingly, and according to the described instruction received, exports offset current compensate its power network line be positioned at.
5. method as claimed in claim 4, it is characterized in that, the concrete steps of described step b comprise further:
The real time information that described hind computation center sends according to SVG in each reactive compensation unit received, determines the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof;
When to get in each reactive compensation unit SVG and be all normal, all convert described each compensate component calculated the instruction with random transmitting sequence to, and after treating all instruction transformation, each instruction is handed down to respectively at random the SVG in corresponding compensating unit.
6. method as claimed in claim 4, it is characterized in that, the concrete steps of described step b further comprise:
The real time information that described hind computation center sends according to SVG in each reactive compensation unit received, determines the compensate component of SVG in the compensation total amount of described power network line reactive power and each reactive compensation unit corresponding thereof;
When getting that in a compensating unit, SVG breaks down, determine that the quantity of normal SVG is the total transfer capability that n and described n normal SVG is corresponding respectively, and calculate described n normal SVG further respectively and the described transmission distance broken down between SVG; N is natural number;
Using the described n a calculated transmission distance according to after sorting from small to large as described n the normal corresponding sequence of extraction of SVG, and from 1 to n, ascending order numbering is carried out to described sequence of extraction;
Sequentially obtain the total transfer capability of normal SVG corresponding to described sequence of extraction, until when get be numbered m time, during compensate component corresponding to the SVG that breaks down described in being more than or equal to after the difference generated between the compensate component that before in described sequence of extraction, the total transfer capability of the normal SVG of m is corresponding with it adds up, stop extracting, and further according to described sequence of extraction using the total transfer capability of normal for front m SVG as compensate component corresponding to described front m normal SVG, and rear n-m the compensate component that normally SVG is corresponding respectively all converts instruction to, and after treating all instruction transformation, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described sequence of extraction, wherein, m≤n, and be natural number.
7. method as claimed in claim 6, it is characterized in that, described method comprises further:
Sequentially obtain the total transfer capability of normal SVG corresponding to described sequence of extraction, after treating that n numbering is extracted, the compensate component that the SVG that breaks down described in being still less than after the difference generated between the compensate component that the total transfer capability of the normal SVG of described n is corresponding with it adds up is corresponding, then all convert the total transfer capability of described n normal SVG to instruction as described n the compensate component that normally SVG is corresponding according to described sequence of extraction, and after treating all instruction transformation further, each instruction is handed down to respectively the SVG in corresponding compensating unit according to described sequence of extraction, and output alarm information.
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| CN112952856A (en) * | 2021-04-19 | 2021-06-11 | 江苏理工学院 | SVG (scalable vector graphics) coordination control method based on multi-agent chaotic immune algorithm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335456A (en) * | 2008-07-18 | 2008-12-31 | 湖南大学 | Power distributing reactive optimizing compensation system based on GPRS and control method thereof |
| JP2013135606A (en) * | 2011-12-23 | 2013-07-08 | Hyundai Motor Co Ltd | System and method for transmitting and receiving data upon electric vehicle charging |
| CN103401249A (en) * | 2013-07-22 | 2013-11-20 | 国家电网公司 | Reactive power automatic arrangement method based on available resource of reactive equipment |
-
2015
- 2015-10-22 CN CN201510686279.8A patent/CN105305459A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335456A (en) * | 2008-07-18 | 2008-12-31 | 湖南大学 | Power distributing reactive optimizing compensation system based on GPRS and control method thereof |
| JP2013135606A (en) * | 2011-12-23 | 2013-07-08 | Hyundai Motor Co Ltd | System and method for transmitting and receiving data upon electric vehicle charging |
| CN103401249A (en) * | 2013-07-22 | 2013-11-20 | 国家电网公司 | Reactive power automatic arrangement method based on available resource of reactive equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952856A (en) * | 2021-04-19 | 2021-06-11 | 江苏理工学院 | SVG (scalable vector graphics) coordination control method based on multi-agent chaotic immune algorithm |
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